vil] 
Contents. 
CHAPTER X. 
page 
Mosquitoes axd Parasite Problems . « . ,135 
CHAPTER XI. 
Humble-Bees and other Matters . , ^ , 154 
A Noble Wasp 
CHAPTER XII. 
162 
CHAPTER XIII. 
Xature’s Xight-lights . . . - c . .108 
CHAPTER XIV. 
Facts and Thoughts about Spiders . , » » 178 
CHAPTER XV. 
The Death-feigning Instinct - . « « , 200 
Humming-Birds 
CHAPTER XVI. 
. 205 
CHAPTER XVII. 
The Crested Screamer . . . . . . .221 
CHAPTER XVIII. 
The Wood hewer Family . , , . ^ .235 
CHAPTER XIX. 
Music and Dancing in Nature . . . . .261 
CHAPTER XX. 
Biography of the Vizcacha ...... 289 
CHAPTER XXI. 
The Dying Huanaco 
. 314 
